I've read whitepaper 2 times yet can't understand nothing. My blame I'm not a technical guy but reading about how BTC or other crypto (ETH, NEM, Waves etc.) works I was able to understand underlying technology.

I was following this project for about a year and I think it is very interesting to see how it works in reality. Because testing in "lab" environment is not the same as "network effect".

I have just one concern regarding scalability (on par with VISA levels) and rewards to Radix token holders. If you have the best solution for scalability you must incentivise people to spend their tokens as much as they can. But if model of Radix is based on rewarding token holders, theoretically, you can't expect people to spend their tokens. Hodling is encouraged even more because of low volatility index. Having this in mind we just don't need VISA scalability levels in hodling incentivised model. In your situation Radix should motivate its users to spend because of network capacity to scale but I see the opposite - users are incentivised to hodl and receive rewards. As I can understand low volatility (~3%) will prevent from large trading manipulation and holding tokens is much more profitable than day trading?  So, how are you going to solve this problem (if it is a problem for you at all) and encourage people to spend their tokens even if they are aware that they lose their interest? Probably you should reward both sides - holders and spenders. For example, NEM is encouraging users to spend their tokens by increasing user significance on the network. It is logical because you can reach network growth only by rising transaction number. Probably you should rethink your model and incentivise people to spend Radix tokens by rewarding them in some way?

p.s. think about glossary in your whitepaper. It could help not technical people to understand the main concepts.